The Ultimate in Comfort and PerformanceStep into a shoe you'll never want to take off when you get a pair of the new Ultraboost 20 sneakers. These were crafted with performance and comfort in mind to help you with whatever athletic task you want to conquer. Run farther and faster than ever before with a flexible outsole that provides that extra energy kick when you're ready to collapse.Design That Helps You Fly HighWith the Ultraboost 20, you'll feel locked in and ready to ride with a lace closure that keeps your foot snugly fitted in the shoe. The synthetic lining paired with the Primeknit textile upper gives your foot a chance to breathe when things get sweaty. As if that wasn't enough, the Ultraboost 20 also comes in a number of brand-new colorways that will make everyone doubly jealous as you zoom past them on the track. Ultraboost 20 features: Lace closure keeps your foot securely in place. Primeknit textile upper allows your feet to breathe. Responsive Boost midsole provides cushioning and shock absorption. Fitcounter molded heel offers a natural fit. Stretchweb outsole flexes with your foot for maximum energy return. Continental Rubber coating on outsole ensures you never lose your grip.